Rib chair



Feb. 23 1926.,-

W. E. WHITE RIB CHAIR Filed Dec. 26, 1922 c dkeesl Patented Feb. 23,1926.

UNITED STATES PATENT OFFICE.

WILLIAM EL WI-IITE OF CHICAGO, ILLINOIS, ASSIGNOR TO KALMAN STEEL 00.,OF

CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.

n13 CHAIR.

Application filed December 26, 1922. Serial No. 608,863.

To all whom,- it may concern:

Be it known that I, WILLIAM E. WHITE, a citizen of the United States,and resident of Chicago, in'the county of Cook and State of Illinois,have invented certain new and useful Improvements in a Rib Chair, ofwhich the following is a specification.

My invention relates to devices for supportin concrete reinforcementsand particulai ly to a novel rib chair of simple and economicalconstruction. I a

One of the objects of my invention is to provide a supporting device ofthe character described which shall be ofutmost simplicity. To that endI construct the device from a single length of wire and so design thechair that it may be formed by automatic machinery. This results inextremely low cost. I

A fundamental feature in the design submitted is in that I provide two Aframes which furnish the required stability and i join them by a membershaped to provide seats for reinforcing bars and located at the requiredheight whichwill be at a point intermediate the height of the A frames.In addition I provide means for spacing the chairs relative-to the sidesof the forms which outline the lateral limits of the rib.

The invention will be more readily under--.

stood by reference to the accompanying drawing, wherein Figure 1 is aperspective view of a rib chair constructed in accordance with myinvention;

Figure 2 is an end view thereof;

Figure 3 is a perspective view of a modified form of the'device;

Figure 4 is an end view thereof;

Figure 5 is a perspective View of a further modification; and

'Figure 6 is an end viewthereof.

In the drawings,'referring particularly to Figures 1 and 2, it will beseen that in constructing the device of mv invention I utilize a singlecontinuous length of wire of suitable size. and stiffness and formtherein two V-shaped structures 10, 11, the legs 12, 13, of each ofwhich rest upon a form' and stabilize the structure. The wire at thetermination of the legs 12 is re-bent and pro jects upwardly andlongitudinally away point 15 the wire is again re-bent, thc portions 16extending horizontally. The point 15 is so arranged as to constitutespacing means for the chair whereby to suitably center the chair andconsequently the reinforcing bars within the rib. Intermediate the endsof the horizontal portion 16 I provide a loop 17 which may projectupwardly or diagonally upwardly as shown. This results in the formationof pockets 18 for the accommodation of the reinforcing bars.

In the construction shown in Figures 3 and 4, the elements remain thesame. How ever, the legs 19, 20, occupy different vertical planes, beingspaced apart by means'of a horizontal member 21.- Thus the leg 2() actsas the means for centering the chair in the form. In this instance there-bent portion 22 lies in the same plane with the leg 19.

The horizontal part 23 and the loop 21 are neath the apex of the A frameand this lends stability to the structure.

In the construction shown in Figures 5 and 6, the legs 25, 26, arearranged the same as in Figure 1, being in the same plane.

Likewise the part 27 is upwardly and l0n-.v

gitudina'lly outwardly bent, the end 28 constituting the spacing devicefor the chair. However, the portion 27 is bent outwardly from theterminal point of the leg 25 instead of inwardly as in Figure 1. Thusthe horizontal part 29 and the loop 30 which constitute the seat for thereinforcing bar are located outside of, insteadof inside of the legs asin the two preceding figures.

In each of the structures described it will be noted that the samestructural features are present and that the device is of such sim-''plicity that it may beformed economically.

By employing wire ofsuitable gauge and stiffness the required strengthand stability are secured.

Obviously the construction is capable of l some modification and I donot wish to be limited except as indicated in the appended claims. i i

I claim: 1. A ribchair composed of a-continuous wire bent to provide twopairs of spacedapart legs, each pair beingarranged in V- shape, aconnect g'membr located intermediate the height of the legs andproviding a seat .for a reinforcing bar, and, laterally projectingmeansfor spacing the chair in a form. v

2 A rib chair composed of a continuous wire providing two pairs of legsand a connectin member, said connecting member beingarranged-horizontally at a point midof two of said legs and means in thecon-' necting member for providing a seat for a reinforcing bar 4. Achair consisting of a continuous length'ofwire bent to provide two pairsof legs, each pair of legs being arranged in V-' shape, and a connectingmember extending between the pairs of legs and formed by rebending theWire upwardly'from the ends of two of said legs, means in the connectingmember forproviding-a seat for a reinforcing bar, and laterallyprojecting means for spacing the chair in a form.

Signed at Chicago, Illinois, this 20th day of December, 1922. 1

WILLIAM E'WVHITE'.

